Answer:
a) The enhancer site is a distal control site many nucleotides upstream from the promoter site, and activates the initiation complex of transcription.
Explanation:
Enhancers are the regulatory DNA sequences that are generally located quite away from the coding regions of a gene. These sequences are mostly present upstream of promoter sequences. Enhancers regulate the gene expression by stimulating the formation of an active transcription initiation complex and thereby, increase the rate of RNA synthesis. Enhancers also serve as the binding site for specific regulatory proteins. These proteins bound to the enhancers then activate transcription by interacting with the proteins bound to the promoters.
Answer:
color
Soil can be described based on its color (yellow brown red), how light or dark it is, and how intense the color is.
Texture
Ranges from bolder size pieces to very fine clay
Structure
Describes the shape of soil clumps and how the soil particles are held together. It can look grainy, blocky, or prism shaped.
Consistency
Hardness or softness of soil measuered by its consitstency varies with moisture for example some soils have soft, slippery consiststency when there moist.
Infiltration
How fast water enters soil
Soil moisture
Amount of water in soil pours is its moisture contents scientits detemine weight loss by drying samples in a oven at 100c the weight difference is the amount mouisture in the soil
Answer:
A - 1. Carbon dioxide is converted to sugar used for food (this is process of phosynthesis).
G - 2. Carbon trapped in fossil fuels is converted to carbon dioxide (this is combustion of fuel).
E - 3. Organic carbon is converted to fossil fuels.
H - 4. Carbon dioxide is converted to carbonates.
F - 5. Sugar is broken down and converted to carbon dioxide (this is breathing).
Explanation:
"The oxytocin in blood stimulates the pituitary to secrete more oxytocin" is the way among the following choices given in the question that <span>the level of oxytocin is controlled by a positive-feedback mechanism. The correct option among all the options that are given in the question is the second option or option "B".</span>
The correct answer is (A.) bacteriophages using DNA to infect bacteria.
Explanation
1. In 1952, Alfred Hershey and Martha Chase did experiment to find the genetic material in organisms.
2.Bacteriophages (viruses that affect bacteria) were the key element for Hershey and Chase experiment.
3.In which they concluded DNA as genetic material as bacteriophages use DNA to infect bacteria and not protein.
